Extension for a Modbus RTU connection

The heat pump manager can communicate with external systems via the LWPM 410 extension, which is available as an accessory. The Modbus protocol, which is freely available on the market and can be implemented on other bus systems, serves as the interface protocol. It should be noted that over 100 variables can be transferred to the extension, which can be read out individually or transferred to a higher-level bus system.

Table of Contents

LWPM 410 extension
Order reference	LWPM 410
item number	339410
Device type	Slave
protocol	RTU
baud rate	1200, 2400, 4800, 9600, 19200
Data format software version <L23	8N1
Data bits	8th
Parity	None
Stop bits	1
Data format software version> L23	8N1, 8N2, 8O1, 8O2, 8E1, 8E2
Data bits	8th
Parity	None, Even, Odd
Stop bits	1, 2
Network address	1 ... 207
interface	RS485
Cable sizing	2 x 0.5 mm² shielded max.50m
Connection type	Screw terminals

System requirement

The minimum system requirement for using the LWPM 410 extension is a Dimplex heat pump with heat pump manager WPM 2006, WPM 2007 or WPM EconPlus with software version H_H50 and higher.

Modbus / RTU

The Modbus protocol is a communication protocol based on the master / slave principle. A master device controls and monitors the entire data transmission in the network / bus system, the connected slave devices only respond when requested. The Dimplex heat pump manager can process the Modbus protocol in RTU mode.

Function codes supported

Type	R / W	Function code	Modbus function
Digital	R.	01 (0x01)	Read coils
Digital	R.	02 (0x02)	Read Discrete Inputs
Analogue	R.	03 (0x03)	Read Holding Register
Analogue	R.	04 (0x04)	Read input register
Digital	W.	05 (0x05)	Write single coil
Analogue	W.	06 (0x06)	Write single register

installation

Note
ATTENTION Before opening the device, all circuits must be disconnected from the power supply. All electrical connection work may only be carried out by a qualified electrician or a specialist for specified activities in compliance with the installation and operating instructions.

The installation of the LWPM 410 extension takes place on the heat pump manager in the designated slot “Serial Card / BMS Card”. The following steps are carried out:

De-energize the heat pump manager

Remove the cover of the “Serial Card / BMS Card” slot with a small screwdriver

Installation of the LWPM extension

Breaking out the existing cover

Close the opening with the enclosed cover

Supply the heat pump manager with voltage

Heat pump manager settings

Depending on the software version on the heat pump manager, the following settings must be checked and adjusted if necessary:

from WPM_H with the key combinations «menu" and "Enter » in the "Modem" settings
from WPM_L with the key «menu»In the" Network "settings
- Protocol: Modbus
- Baud rate: 9600 -> factory setting, adapt to the network if necessary
- Address: 001 -> factory setting, if necessary adapt to the end devices in the network
from WPM_L20.2 with the key «menu»In the" Network "settings
- Protocol: Modbus
- Baud rate: 9600 -> factory setting, adapt to the network if necessary
- Address: 001 -> factory setting, if necessary adapt to the end devices in the network
- Address range: 1..127 -> absolutely required

Data point list

Operating data

	KNX / EIB
	Modbus				Modbus				Modbus
	Address		Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	Datapoint type	R / W	Unit
Surname	WPM software J / L	WPM software H	Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	Datapoint type	R / W	Unit
Outside temperature (R1)	1	27	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Return temperature (R2)	2	29	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Return temperature setpoint	53	28	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Hot water temperature (R3)	3	30th	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Set hot water temperature	58	40	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Flow temperature (R9)	5	31	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Heat source inlet temperature (R24) *	6th	-	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Heat source outlet temperature (R6)	7th	41	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Target temperature 2nd heating circuit	54	32	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Temperature 2nd heating circuit (R5)	9	33	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Target temperature 3rd heating circuit	55	34	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Temperature 3rd heating circuit (R13)	10	35	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Room temperature 1 / RT-RTH Econ	11th	36	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Room temperature 2	12th	38	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Room humidity 1 / RT-RTH Econ	13th	37	16 bit float	OUT	register	None		9.001	unsigned 16 bit	R.	° C
Room humidity 2	14th	39	16 bit float	OUT	register	None		9.001	unsigned 16 bit	R.	° C
Passive cooling
Flow temperature (R11)	19th	42	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Return temperature (R4)	20th	43	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Passive / active cooling
Return temp. according to primary circuit (R24)	21	-	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Solar
Collector sensor (R23)	10	-	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Solar storage tank (R22)	23	-	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
ventilation
Outside air temperature	120	-	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Supply air temperature	121	-	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Exhaust air temperature	122	-	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Exhaust air temperature	123	-	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	° C
Speed of supply air fan	125	-	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	1 / min
Exhaust fan speed	126	-	16 bit float	OUT	register	None		9.001	signed 16 bit	R.	1 / min

Info
*NOTE The heat source inlet is only available for heat pumps with an electronic expansion valve.

history

	KNX / EIB
	Modbus						Modbus
	Address				Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Unit
	WPM software J / L		WPM software H
Surname	RTU	IP	RTU	IP
Compressor 1	72		64		unsigned 16 bit	OUT	register	None		7.007	R.	H
Compressor 2	73		65		unsigned 16 bit	OUT	register	None		7.007	R.	H
Primary pump / fan (M11)	74		66		unsigned 16 bit	OUT	register	None		7.007	R.	H
2nd heat generator (E10)	75		67		unsigned 16 bit	OUT	register	None		7.007	R.	H
Heating pump (M13)	76		68		unsigned 16 bit	OUT	register	None		7.007	R.	H
Hot water pump (M18)	77		69		unsigned 16 bit	OUT	register	None		7.007	R.	H
Flange heating (E9)	78		70		unsigned 16 bit	OUT	register	None		7.007	R.	H
Swimming pool pump (M19)	79		71		unsigned 16 bit	OUT	register	None		7.007	R.	H
Additional circulation pump (M16)	71 from L12		-		unsigned 16 bit	OUT	register	None		7.007	R.	H
Amount of heat^* Heating 1-4	223	5096	228	5101	unsigned 16 bit	OUT	register	None		7.007	R.	kWh
Amount of heat^* Heating 5-8	224	5097	229	5102	unsigned 16 bit	OUT	register	None		7.007	R.	kWh
Amount of heat^* Heating 9-12	225	5098	230	5103	unsigned 16 bit	OUT	register	None		7.007	R.	kWh
Amount of heat^* Hot water 1-4	226	5099	231	5104	unsigned 16 bit	OUT	register	None		7.007	R.	kWh
Amount of heat^* Hot water 5-8	227	5100	232	5105	unsigned 16 bit	OUT	register	None		7.007	R.	kWh
Amount of heat^* Hot water 9-12	228	5101	233	5106	unsigned 16 bit	OUT	register	None		7.007	R.	kWh
Amount of heat^* Swimming pool 1-4	229	5102	234	5107	unsigned 16 bit	OUT	register	None		7.007	R.	kWh
Amount of heat^* Swimming pool 5-8	230	5103	235	5108	unsigned 16 bit	OUT	register	None		7.007	R.	kWh
Amount of heat^* Swimming pool 9-12	231	5104	236	5109	unsigned 16 bit	OUT	register	None		7.007	R.	kWh

Info
*NOTE A quantity of heat can only be output for heat pumps with pressure sensors or an external heat meter WMZ!

Example of heat quantities^*

The heat quantities are made up of 3 indices. These 3 indices have to be combined with the following formula for the amount of heat.

Heat amount heating = (heat amount heating 9-12 * 100000000) + (heat amount heating 5-8 * 10000) + heat amount heating 1-4

The amount of heat for "hot water" and "swimming pool" is determined according to this description. However, the corresponding data point is used here.

settings

1st heating circuit

	KNX / EIB
	Modbus						Modbus
	Address				Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Range		Unit
	WPM software J / L		WPM software H									Range
Surname	RTU	IP	RTU	IP								Min.	Max.
Parallel shift	163	5036	129	5002	unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	38
												0 = -19 1 = -18 2 = -17 3 = -16 4 = -15 5 = -14 6 = -13 7 = -12 8 = -11 9 = -10 10 = -9 11 = -8 12 = -7 13 = -6 14 = -5 15 = -4 16 = -3 17 = -2 18 = -1 19 = 0	20 = 1 21 = 2 22 = 3 23 = 4 24 = 5 25 = 6 26 = 7 27 = 8 28 = 9 29 = 10 30 = 11 31 = 12 32 = 13 33 = 14 34 = 15 35 = 16 36 = 17 37 = 18 38 = 19
Room temperature	46		21		unsigned 16 bit	IN / OUT	register	None		7.001	R / W	15.0	30.0	° C
Fixed setpoint temperature	164	5037	130	5003	unsigned 16 bit	IN / OUT	register	None		7.001	R / W	18th	60	° C
Heating curve end point	165	5038	142	5015	unsigned 16 bit	IN / OUT	register	None		7.001	R / W	20th	70	° C
Hysteresis	47		22nd		unsigned 16 bit	IN	register	Divide	10	7.001	R / W	0.5	5.0	K
Hysteresis	47		22nd		unsigned 16 bit	OUT	register	Multiply	10	7.001		0.5	5.0	K
Target temp. dyn. cooling	170	5043	151	5024	unsigned 16 bit	IN / OUT	register	None		7.001	R / W	10	35	° C

2nd / 3rd heating circuit

In order to be able to make changes to the 2nd or 3rd heating circuit, the changeover must take place via an address. After switching over this address, it is possible to change parameters in the desired heating circuit without any problems.

Info
* ProgrammingNOTE When selecting the 2nd heating circuit, the value 2 is initially sent to address 209. The required values for the 2nd heating circuit can then be changed. Analogous to the description, this is done with the 3rd heating circuit and the value 3.

	KNX / EIB
	Modbus				Modbus
	Address		Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Range		Unit
Surname	RTU	IP	Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Min.	Max.	Unit
Select heating circuit 2/3	209	5082	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	2	3
										2 = 2nd heating circuit 3 = 3rd heating circuit
Heating curve end point	211	5084	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	20th	70	° C
Fixed value temperature	212	5085	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	20th	60	° C
Parallel shift	213	5086	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	38
										0 = -19 1 = -18 2 = -17 3 = -16 4 = -15 5 = -14 6 = -13 7 = -12 8 = -11 9 = -10 10 = -9 11 = -8 12 = -7 13 = -6 14 = -5 15 = -4 16 = -3 17 = -2 18 = -1 19 = 0	20 = 1 21 = 2 22 = 3 23 = 4 24 = 5 25 = 6 26 = 7 27 = 8 28 = 9 29 = 10 30 = 11 31 = 12 32 = 13 33 = 14 34 = 15 35 = 16 36 = 17 37 = 18 38 = 19
Mixer runtime	214	5087	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	1	6th	Min
Mixer hysteresis	93		Unsigned 16 bit	IN	register	Divide	10	7.001	R / W	0.5	2.0	K
Mixer hysteresis	93		Unsigned 16 bit	OUT	register	Multiply	10	7.001	R / W	0.5	2.0	K
Maximum temperature	215	5088	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	30th	70	° C
Cooling set room temperature	216	5089	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	30th
										0 = 15.0 1 = 15.5 2 = 16.0 3 = 16.5 4 = 17.0 5 = 17.5 6 = 18.0 7 = 18.5 8 = 19.0 9 = 19.5 10 = 20.0 11 = 20.5 12 = 21.0 13 = 21.5 14 = 22.0 15 = 22.5	16 = 23.0 17 = 23.5 18 = 24.0 19 = 24.5 20 = 25.0 21 = 25.5 22 = 26.0 23 = 26.5 24 = 27.0 25 = 27.5 26 = 28.0 27 = 28.5 28 = 29.0 29 = 29.5 30 = 30.0	° C

mode

	KNX / EIB
	Modbus						Modbus
	Address				Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Range
	WPM software J / L		WPM software H									Range
Surname	RTU	IP	RTU	IP								Min.	Max.
operation mode	142	5015	134	5007	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	5
												0 = summer 1 = auto 2 = vacation 3 = party 4 = 2nd heat generator 5 = cooling
Number of party hours	143	5016	135	5008	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	72
Number of vacation days	144	5017	136	5009	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	150
ventilation
stages	161	5034	-		Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	5
												0 = off 1 = automatic 2 = level 1 3 = level 2 4 = level 3 5 = intermittent ventilation
Time value burst ventilation	127		-		Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	15th	90

Info
NOTE To use the ventilation function, a ventilation device of the ZL ... V (F) series with Modbus RTU connection to the heat pump manager is required.

Hot water

	KNX / EIB
	Modbus						Modbus
	Address				Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Range		Unit
	WPM software J / L		WPM software H									Range
Surname	RTU	IP	RTU	IP								Min.	Max.
Hysteresis	172	5045	131	5004	unsigned 16 bit	IN / OUT	register	None		7.001	R / W	2	15th	K
Target temperature	174	5047	149	5022	unsigned 16 bit	IN / OUT	register	None		7.001	R / W	Minim.	85	° C
Target temperature minimum	272	5145	-	-	unsigned 16 bit	IN / OUT	register	None		7.001	R / W	10	Intended to.	° C
Target temperature maximum	175	5048	-	-	unsigned 16 bit	IN / OUT	register	None		7.001	R / W	Intended to.	85	° C

swimming pool

	KNX / EIB
	Modbus						Modbus
	Address				Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Range		Unit
	WPM software J / L		WPM software H									Range
Surname	RTU	IP	RTU	IP								Min.	Max.
Hysteresis	176	5049	-		unsigned 16 bit	IN / OUT	register	None		7.001	R / W	1	20th	K
Target temperature	178	5051	-		unsigned 16 bit	IN / OUT	register	None		7.001	R / W	5	60	° C

2. Heat generator

	KNX / EIB
	Modbus						Modbus
	Address				Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Range		Unit
	WPM software J / L		WPM software H									Range
Surname	RTU	IP	RTU	IP								Min.	Max.
Mixer hysteresis	48		20th		unsigned 16 bit	IN	register	Divide	10	7.001	R / W	0.5	2.0	K
Mixer hysteresis	48		20th		unsigned 16 bit	OUT	register	Multiply	10	7.001		0.5	2.0	K
Limit temperature parallel	147	5020	19th		unsigned 16 bit	IN / OUT	register	None		7.001	R / W	-25	35	° C
Mixer runtime	148	5021	37		unsigned 16 bit	IN / OUT	register	None		7.001	R / W	30th	85	Min

Selection of time functions

Access to the time functions, e.g. for blocking, lowering / increasing values or times, is achieved by switching over the address 192 (Modbus IP 5065).

Info
* ProgrammingNOTE To change a reduction or increase value for the 1st heating circuit, the value 1 for reduction or 2 for increase is sent to address 192 (Modbus IP 5065). The required values for the 1st heating circuit can then be changed. Analogous to the description, this is done with the 2nd and 3rd heating circuit or blocks for e.g. hot water and swimming pool preparation.

Lowering / raising

	KNX / EIB
	Modbus				Modbus
	Address		Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Range
Surname	RTU	IP	Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Min.	Max.
1st heating circuit
Subsidence	192	5065	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	1	1
Raising	192	5065	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	2	2
2nd heating circuit
Subsidence	192	5065	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	3	3
Raising	192	5065	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	4th	4th
3rd heating circuit
Subsidence	192	5065	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	5	5
Raising	192	5065	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	6th	6th
Time function
Start hour 1	193	5066	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	23
Start minute 1	194	5067	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	59
End of hour 1	195	5068	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	23
End of minute 1	196	5069	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	59
Start hour 2	197	5070	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	23
Start minute 2	198	5071	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	59
End of lesson 2	199	5072	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	23
End of minute 2	200	5073	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	59
Sunday	201	5074	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Monday	202	5075	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Tuesday	203	5076	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Wednesday	204	5077	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Thursday	205	5078	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Friday	206	5079	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Saturday	207	5080	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
										0 = yes 1 = no 2 = time 1 3 = time 2
Reduction / increase value	208	5081	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	19th
Active time 1	125		Boolean	OUT	Coil	None		1,001	R.	0	1
Active time 2	126		Boolean	OUT	Coil	None		1,001	R.	0	1

Hot water lock

	KNX / EIB
	Modbus				Modbus
	Address		Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Range
Surname	RTU	IP	Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Min.	Max.
Hot water lock	192	5065	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	7th	7th
Time function
Start hour 1	193	5066	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	23
Start minute 1	194	5067	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	59
End of hour 1	195	5068	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	23
End of minute 1	196	5069	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	59
Start hour 2	197	5070	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	23
Start minute 2	198	5071	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	59
End of lesson 2	199	5072	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	23
End of minute 2	200	5073	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	59
Sunday	201	5074	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Monday	202	5075	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Tuesday	203	5076	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Wednesday	204	5077	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Thursday	205	5078	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Friday	206	5079	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Saturday	207	5080	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
										0 = yes 1 = no 2 = time 1 3 = time 2
Active time 1	125		Boolean	OUT	Coil	None		1,001	R.	0	1
Active time 2	126		Boolean	OUT	Coil	None		1,001	R.	0	1

Thermal disinfection

	KNX / EIB
	Modbus				Modbus
	Address		Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Range		Unit
Surname	RTU	IP	Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Min.	Max.	Unit
Thermal disinfection	192	5065	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	8th	8th
Time function
Start hour	193	5066	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	23	hour
Start minute	194	5067	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	59	min
Sunday	201	5074	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	1
Monday	202	5075	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	1
Tuesday	203	5076	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	1
Wednesday	204	5077	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	1
Thursday	205	5078	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	1
Friday	206	5079	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	1
Saturday	207	5080	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	1
										0 = yes 1 = no
temperature	208	5081	unsigned 16 bit	IN / OUT	register	None		7.001	R / W	60	85	° C
active	125		boolean	OUT	Coil	None		1,001	R.	0	1	no

DHW circulation pump

	KNX / EIB
	Modbus				Modbus
	Address		Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Range
Surname	RTU	IP	Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Min.	Max.
Circulation pump	192	5065	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	12th	12th
Time function
Start hour 1	193	5066	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	23
Start minute 1	194	5067	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	59
End of hour 1	195	5068	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	23
End of minute 1	196	5069	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	59
Start hour 2	197	5070	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	23
Start minute 2	198	5071	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	59
End of lesson 2	199	5072	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	23
End of minute 2	200	5073	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	59
Sunday	201	5074	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Monday	202	5075	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Tuesday	203	5076	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Wednesday	204	5077	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Thursday	205	5078	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Friday	206	5079	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
Saturday	207	5080	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	3
										0 = yes 1 = no 2 = time 1 3 = time 2
Active time 1	125		Boolean	OUT	Coil	None		1,001	R.	0	1
Active time 2	126		Boolean	OUT	Coil	None		1,001	R.	0	1

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	KNX / EIB
	Modbus					Modbus
	Address			Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Range
Surname	WPM software L	WPM software J	WPM software H	Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Min.	Max.
Status reports	103	43	14th	unsigned 16 bit	OUT	register	None		7.001	R.	0	30th
Heat pump lock	104	59	94	unsigned 16 bit	OUT	register	None		7.001	R.	1	42
Fault messages	105	42	13th	unsigned 16 bit	OUT	register	None		7.001	R.	1	31
Sensors	106	-	-	unsigned 16 bit	OUT	register	None		7.001	R.	1	27

Status reports

Value	Description
Value	L software	H / J software
0	the end	the end
1	the end	Heat pump on heating
2	Heat	Heat pump on heating
3	swimming pool	Heat pump A swimming pool
4th	Hot water	Heat pump One hot water
5	Cool	Heat pump One heating + 2nd heat generator
6th		Heat pump A swimming pool + 2nd heat generator
7th		Heat pump One hot water + 2nd heat generator
8th		Primary pump supply
9		Heating rinse
10	Defrost	Lock (see value for lock J software)
11th	Flow monitoring	Lower limit of use
12th		Low pressure limit
13th		Low pressure shutdown
14th		High pressure protection
15th		Switching cycle lock
16		Minimum service life
17th		Network load
18th		Flow monitoring
19th		2. Heat generator
20th		Low pressure brine
21		Heat pump on defrost
22nd		Upper limit of use
23		External lock
24	Operating mode switchover delay	Operating mode cooling
25th		Frost protection cold
26th		Lead limit
27		Dew point monitor
28		dew point
29		Passive cooling
30th	Lock (see value for lock L software)

Lock

Value	Description
Value	L software	J software	H software
0
1		Application limit HT	Outside temperature
2	Volume flow	Application limit WP	Bivalent alternative
3		Regenerative	Bivalent regenerative
4th			Rewind
5	Function control	Hot water reheating	Hot water
6th	Application limit HT	System control	System control
7th	System control	EVU lock	EVU lock
8th	Cooling switchover delay
9	Pump feed	High pressure
10	Minimum service life	Low pressure
11th	Network load	Flow
12th	Switching cycle lock	Soft starter
13th	Hot water reheating
14th	Regenerative
15th	EVU lock
16	Soft starter
17th	Flow
18th	Application limit heat pump
19th	High pressure
20th	Low pressure
21	Application limit heat source
23	System limit
24	Load primary circuit
25th	External lock
33	EvD initialization
34	2. Heat generator released
35	Fault (see value for fault messages)
36		Pump feed
37		Minimum service life
38		Network load
39		Switching cycle lock
40		Application limit heat source
41		External lock
42		2. Heat generator
43		Fault (see value for fault messages)

Fault messages

Value	Description
Value	L software	H / J software
0	no mistake	no mistake
1	Error N17.1
2	Error N17.2
3	Error N17.3	Load compressor
4th	Error N17.4	Coding
5		Low pressure
6th	Electronic Ex valve	Antifreeze
7th		Outside sensor short circuit or break
8th		Return sensor short circuit or break
9		Hot water sensor short circuit or break
10	WPIO	Frost protection sensor short circuit or break
11th		2nd heating circuit sensor short circuit or break
12th	Inverter	Freeze protection sensor short circuit or break
13th	WQIF	Low pressure brine
14th		Motor protection primary
15th	Sensors	Flow
16	Low pressure brine	Hot water
17th		High pressure
19th	! Primary circuit	Hot gas thermostat
20th	! Defrost	Application limit cooling
21	! Low pressure brine
22nd	! Hot water
23	! Load compressor	Temperature difference
24	! Coding
25th	! Low pressure
26th	! Frost protection
28	! High pressure
29	! Temperature difference
30th	! Hot gas thermostat
31	! Flow

Sensors

Value	Description
Value	L software
1	Outside sensor (R1)
2	Return sensor (R2)
3	Hot water sensor (R3)
4th	Coding (R7)
5	Flow sensor (R9)
6th	2nd heating circuit sensor (R5)
7th	3rd heating circuit sensor (R13)
8th	Regenerative sensor (R13)
9	Room sensor 1
10	Room sensor 2
11th	Heat source outlet sensor (R6)
12th	Heat source inlet sensor (R24) *
14th	Collector sensor (R23)
15th	Low pressure sensor (R25)
16	High pressure sensor (R26)
17th	Room humidity 1
18th	Room humidity 2
19th	Frost protection cold sensor
20th	Hot gas
21	Return sensor (R2.1)
22nd	Swimming pool sensor (R20)
23	Flow sensor cooling passive (R11)
24	Return flow sensor cooling passive (R4)
26th	Solar cylinder sensor (R22)
28	Demand sensor for heating (R2.2)
29	RTM Econ
30th	Demand sensor cooling (R39)

Info
*NOTE The heat source inlet is only available for heat pumps with an electronic expansion valve.

Entrances

Surname	Address	Datapoint type	Functions code	R / W	Range		Unit
Surname	Address	Datapoint type	Functions code	R / W	Min.	Max.	Unit
Photovoltaic feed	1	Unsigned 16 bit	0x04	R.	0	1	no
					0 = no 1 = yes
Compressor (M1)	15th	Unsigned 16 bit	0x04	R.	0	1	no
Flange heating (E9)	16	Unsigned 16 bit	0x04	R.	0	1	no
Solar pump (M23)	17th	Unsigned 16 bit	0x04	R.	0	1	no
					0 = off 1 = on

Info
NOTE The status of the input on the heat pump manager can be queried via the data point inputs. It is not possible to write to this data point!

Outputs

	KNX / EIB
	Modbus				Modbus
	Address		Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W
Surname	WPM software J / L	WPM software H	Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W
Compressor 1	41	80	Boolean	OUT	Coil	None		1,001	R.
Compressor 2	42	81	Boolean	OUT	Coil	None		1,001	R.
Primary pump (M11) / fan (M2)	43	82	Boolean	OUT	Coil	None		1,001	R.
2nd heat generator (E10)	44	83	Boolean	OUT	Coil	None		1,001	R.
Heating pump (M13)	45	84	Boolean	OUT	Coil	None		1,001	R.
Hot water pump (M18)	46	85	Boolean	OUT	Coil	None		1,001	R.
Mixer (M21) open	47	86	Boolean	OUT	Coil	None		1,001	R.
Mixer (M21) CLOSED	48	87	Boolean	OUT	Coil	None		1,001	R.
Additional circulation pump (M16)	49	88	Boolean	OUT	Coil	None		1,001	R.
Flange heating (E9)	50	89	Boolean	OUT	Coil	None		1,001	R.
Heating pump (M15)	51	90	Boolean	OUT	Coil	None		1,001	R.
Mixer (M22) open	52	91	Boolean	OUT	Coil	None		1,001	R.
Mixer (M22) closed	53	92	Boolean	OUT	Coil	None		1,001	R.
Swimming pool pump (M19)	56	95	Boolean	OUT	Coil	None		1,001	R.
Collective fault message (H5)	57	-	Boolean	OUT	Coil	None		1,001	R.
Heating pump (M14)	59	94	Boolean	OUT	Coil	None		1,001	R.
Cooling pump (M17)	60	99	Boolean	OUT	Coil	None		1,001	R.
Heating pump (M20)	61	-	Boolean	OUT	Coil	None		1,001	R.
Changeover room thermostats heating / cooling (N9)	66	96	Boolean	OUT	Coil	None		1,001	R.
Primary pump cooling (M12)	68	98	Boolean	OUT	Coil	None		1,001	R.
Solar pump (M23)	71	-	Boolean	OUT	Coil	None		1,001	R.

Info
NOTE In the event of a change, the status of the output is sent by the heat pump manager via the data points outputs. It is not possible to write to this data point!

Time alignment

Using the time synchronization, it is possible to write the current date and time via the interface. So that the change is accepted by the heat pump manager, the value 1 must be written to the associated "set register" immediately after the time has been written. Only then will the change be applied. The value of the "set register" is automatically reset to the value 0 after writing.

	KNX / EIB
	Modbus				Modbus
	Address		Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Range
Surname	RTU	IP	Datapoint type	IN / OUT	COIL / REG	Conversion Rule	Conversion Value	DPT	R / W	Min.	Max.
hour	133	5006	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	23
set hour	102		Boolean	IN	Coil	None		1,001	W.
minute	134	5007	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	59
set minute	103		Boolean	IN	Coil	None		1,001	W.
month	135	5008	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	1	12th
set month	105		Boolean	IN	Coil	None		1,001	W.
weekday	136	5009	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	1	7th
										1 = Monday 2 = Tuesday 3 = Wednesday 4 = Thursday 5 = Friday 6 = Saturday 7 = Sunday
set day of the week	107		Boolean	IN	Coil	None		1,001	W.
Day	137	5010	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	1	31
set day	104		Boolean	IN	Coil	None		1,001	W.
year	138	5011	Unsigned 16 bit	IN / OUT	register	None		7.001	R / W	0	99
set year	106		Boolean	IN	Coil	None		1,001	W.

Info
*NOTE A time comparison is only possible from software versions J / L.

Function descriptions

In this chapter some functional descriptions, the implementation and recommendations are collected and explained.

Smart-Grid / SG Ready

The use of photovoltaic electricity ultimately represents a load-variable tariff, since the heat pump can be operated with inexpensive electricity with photovoltaic yield. In this case, a digital input for "green" electricity can be connected on the heat pump manager. In this operating state, the heat pump runs in increased mode for room heating (return target temperature + increase value) and hot water preparation (maximum temperature hot water). The possibility of release via the available interfaces is also given from heat pump manager software version L20.2. The wiring of the digital input is then not required to enable the function.

Operating states

Condition	Address		Description	action
Condition	3	4th	Description	action
Red	0	1	In this state, the heat pump runs in reduced mode for space heating and hot water generation.	the adjustable reduction value of the respective heating circuit applies to room heating The adjustable minimum hot water temperature applies to hot water generation
yellow	0	0	In this state, the heat pump runs in the set normal mode.
green	1	0	In this state, the heat pump runs in increased mode for space heating and hot water preparation.	the adjustable increase value of the respective heating circuit applies to room heating The adjustable maximum hot water temperature applies to hot water generation * In the case of bivalent-renewable systems, the heat pump is not blocked; the heat pump receives priority 1 in this state

Info
*NOTE The maximum hot water temperature can be limited by the stored "maximum possible hot water temperature"!

Implementation on the heat pump manager

	Address	Datapoint type	IN / OUT	Conversion Rule	Conversion Value	DPT	R / W	Unit
Surname	WPM software L	Datapoint type	IN / OUT	Conversion Rule	Conversion Value	DPT	R / W	Unit
Operating status "green"	3	Boolean	IN / OUT	None		1,001	R / W	no
Operating status "red"	4th	Boolean	IN / OUT	None		1,001	R / W	no

Info
NOTE From WPM software L20.2 it is possible to write to this data point in order to be able to trigger a corresponding action via the interface!

Contact

For further questions, information and suggestions, please send an email to:

ferndiagnose@gdts.one

with the additional information of:

Device designation

Software version

Versions Compared

Old Version 2

New Version 3

Key

System requirement

Modbus / RTU

Function codes supported

installation

Heat pump manager settings

Data point list

Operating data

history

Example of heat quantities^*

settings

1st heating circuit

2nd / 3rd heating circuit

mode

Hot water

swimming pool

2. Heat generator

Selection of time functions

Lowering / raising

Hot water lock

Thermal disinfection

DHW circulation pump

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Status reports

Lock

Fault messages

Sensors

Entrances

Outputs

Time alignment

Function descriptions

Smart-Grid / SG Ready

Operating states

Implementation on the heat pump manager

Contact

Page Comparison

Versions Compared

Old Version 2

New Version 3

Key

System requirement

Modbus / RTU

Function codes supported

installation

Heat pump manager settings

Data point list

Operating data

history

Example of heat quantities*

settings

1st heating circuit

2nd / 3rd heating circuit

mode

Hot water

swimming pool

2. Heat generator

Selection of time functions

Lowering / raising

Hot water lock

Thermal disinfection

DHW circulation pump

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Status reports

Lock

Fault messages

Sensors

Entrances

Outputs

Time alignment

Function descriptions

Smart-Grid / SG Ready

Operating states

Implementation on the heat pump manager

Contact

Example of heat quantities^*